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No. 413;@12. Patented ont. z9,. 1889.

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AArnim*A OFFICE..

or NEW Yoan, N. Y., AssIcNon To JOSEPH A. nAvIs, oF-sAME PLAGE.

ENGINE-BED.

SPECIFICATION forming part of Letters Patent No. 413,912, dated October29, 1889.

i Application tiled April ll, 1889. Serial No. 306,801 (No model.)A

State of New York, have invented certainnew and useful Improvements inEngine- Beds; and Ido hereby declare that the following is a full,clear, and exact description thereof, reference being had to theaccompanying drawings, and to the letters ot reference marked thereon,which form part of this specilication, in which-a Figure l is a sideelevation of myimproved en gine-bed, part of which is broken away. Fig.2 is a top view of the bed, parts of which are broken away.` Fig. 3 is avertical crosssection through the engine-bed, taken in the planeindicated by dotted line :rw on Fig. 1, looking in the direction of thearrows. Fig. Liis a vertical cross-section taken in the plane indicatedby the dotted line y y on Fig. 1, looking in the direction ot the arrowthereon.

The object of my invention is to construct a substantial bed or supportfor an engine and its necessary appurtenances which shall be compact andcomparatively light. In other words, I shall by my improved constructionafford great strength and stability with the least possible amount ofmetal.

My invention consists, essentially, in the combination of verticalstandards with braces and ties, or braces and tie-bolts, using shells orelongated supports for the steam cylinder vor cylinders and an archedframe for the main or crank shaft, all of which will be fully understoodfrom the following description, when-taken in connection with theannexed drawings.

For stationary rectilinear reciprocating engines, which are designed torun at great speed, a solid foundation which will not tremble should beprovided. This I accomplish in the following manner:

A designates a cast-metal standard, which is constructed with a broadbase a', lateral strengthening ribs or iianges a, and a concavereceptacle A the ends of which latter are perpendicular to a horizontalplane.

I show in the annexed drawings an enginebed which is adapted fora'two-cylinder engine, one of the cylinders of which may b part ot' anair-forcing engine. v

Each concave receptacle A has secured to it an elongated concavo-,convexshell H, which is cast with strong ribs or 4iianges a3 a3, equidistantfrom the middle of its length, that snugly abut against the ribs orflanges c, c, and with the aid of transverse bolts rigidly securev theshell H to the standard A.

Each one of the horizontal shells l-I is adapted to have secured to itan engine-cylinder and also the slideways for a reciprocatingcross-head, which ways may7 be adjustable or not.

B designates a standard, which is constructed with a broad base c andbroad flanges b b', and also with a journal-bearing D for a horizontaltransverse crank-shaft, on which is applied a fly or balance wheel. Thisstandard B is also constructed with an arch C, the object of which is tobrace and strengthen this standard.

The standard A and the standard B are ards A B passes a rod F', which Iprefer to make of steel, and which is provided with nuts on its endsscrewed up tightly.. l

The pipes or bars F serve as braces, and their internal rods serve assubstantial ties for firmly binding the parts together.

For some purposes I may dispense with the internal tie-rods F and securethe pipes orv hollow bars F to the 'standards by means of bolts passedthrough their end flanges.

Between the extremities of the barsrF, I cast on them strong lugs G G,which are lapped and rigidly bolted together at f, as 'shown in Figs. land 2. 4Again, by making the tie-rods of sufficient strength the hollowbars F could be dispensedwith. In any of these constructions a rigid andrm enginebed would be provided which would be free from vibration ortrembling when the engine was in motion.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, isM

IOO

l. An engine-bed consisting of two standards strengthened and securedtogether subi stantially as described, in combination with a concavereceptacle on one of the standards and the shell supported on saidreceptacle, substantially as and for the purpose described.

2. An engine-bed consisting of two standards secured and strengthenedsubstantially as described, in combination with a concave receptacle onone of the standards and a shell secured to such standard, substantiallyas specified. l

3. The combination of a standard having a shell secured to it, an archedstandard provided with journal-boxes' for the main shaft of an engine,and the bracing and tie rods, substantially as and for the purposedescribed.

4. The combination of the standards, a shell VIRGIL WV. BLANCHARD.

Witnesses:

P. L. BRooKs, M. P. CALLAN.

